//
//  AppDelegate.swift
//  HJWeibo
//
//  Created by huangjiong on 16/1/31.
//  Copyright © 2016年 huangjiong. All rights reserved.
//

import UIKit

let HJSwitchRootVcNoti = "HJSwitchRootViewControllerNotfication"

@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {

    var window: UIWindow?
    
    
  
    func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
        // Override point for customization after application launch.
        
        
          //注册一个通知,用于监听是否要切换根控制器
        NSNotificationCenter.defaultCenter().addObserver(self, selector: "switchRootViewController:", name: HJSwitchRootVcNoti, object: nil)
        
        //设置导航栏,标签栏,的颜色
        UINavigationBar.appearance().tintColor = UIColor.orangeColor()
        UITabBar.appearance().tintColor = UIColor.orangeColor() 
        
        window = UIWindow(frame: UIScreen.mainScreen().bounds)
        window?.backgroundColor = UIColor.whiteColor()

        window?.rootViewController = defaultController()
        window?.makeKeyAndVisible()
        
        return true
    }
    
    /**
     监听切换根控制器
     
     - parameter notify: <#notify description#>
     */
    func switchRootViewController(notify:NSNotification)
    {
        if notify.object as! Bool
        {
            window?.rootViewController = MainTabBarcontroller()
        } else
        {
            window?.rootViewController = WelcomViewController()
        }
    }
    
    
    
    /**
     定义一个方法,用于确定根控制器
     
     - returns: <#return value description#>
     */
    private func defaultController() ->UIViewController
    {
        //先检测是否已经登录
        if UserAccount.userIsLogin()
        {
            //再判断是否为新安装的版本
            return isNewVersion() ? NewFeatureCollectionVC() : WelcomViewController()
        }
        
        return MainTabBarcontroller()
    }
    
    
    /**
     定义一个方法,用于判断当前安装版本是否为新版本
     
     - parameter application: <#application description#>
     */
    
    private func isNewVersion() -> Bool
    {
        //从infn.plist中获取当前版本号
        let curretnVersion = NSBundle.mainBundle().infoDictionary!["CFBundleShortVersionString"] as! String
        //从本地沙盒中获取之前版本号
        let sandboxVersion = NSUserDefaults.standardUserDefaults().objectForKey("CFBundleShortVersionString") as? String ?? ""
        
        //比较
        if curretnVersion.compare(sandboxVersion) == NSComparisonResult.OrderedAscending
        {
            NSUserDefaults.standardUserDefaults().setObject(curretnVersion, forKey: "CFBundleShortVersionString")
            return true
        }
        return false
    }

    func applicationWillResignActive(application: UIApplication) {
        // Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.
        // Use this method to pause ongoing tasks, disable timers, and throttle down OpenGL ES frame rates. Games should use this method to pause the game.
    }

    func applicationDidEnterBackground(application: UIApplication) {
        // Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.
        // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.
    }

    func applicationWillEnterForeground(application: UIApplication) {
        // Called as part of the transition from the background to the inactive state; here you can undo many of the changes made on entering the background.
    }

    func applicationDidBecomeActive(application: UIApplication) {
        // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
    }

    func applicationWillTerminate(application: UIApplication) {
        // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
    }


}

